[blargue]

Just a hunch but I've noticed that in the new babylon mod some of the quests involving returning to homebase seem to reset the exploration status of the planet. For example, when you pick up the telepath homebase (can't remember the name of it) turns back to white, indicating that you have to go there. Again, I'm no good at this stuff but it strikes me that that might be what you're looking for... just a guess.